package cn.edu.sdjzu.xg.util;

public class Pagination {
    public String toLimitClause(int totalNum) {
        this.totalNum = totalNum;
        int offset = (this.pageNo - 1) * this.pageSize;
        return " LIMIT " + offset + "," + this.pageSize;
    }

    public Pagination(int pageSize, int pageNo) {
        if (pageSize > 0) {
            this.pageSize = pageSize;
        }
        if (pageNo > 0) {
            this.pageNo = pageNo;
        }
    }

    public int getPageSize() {
        return pageSize;
    }

    public int getPageNo() {
        return pageNo;
    }

    public int getTotalNum() {
        return totalNum;
    }

    private int pageSize = 5;
    private int pageNo = 1;
    private int totalNum = 1;
}
